Cheapest return flights from San Antonio to San Juan in September from $220

AirHint found the following cheapest return flights from San Antonio (SAT) to San Juan (SJU) in September 2025 (see full year).

Return flights

12 Sep - 15 Sep Spirit Airlines direct
12 Sep - 29 Sep Spirit Airlines direct
22 Sep - 29 Sep Spirit Airlines direct
05 Sep - 12 Sep Spirit Airlines direct
05 Sep - 15 Sep Spirit Airlines direct
05 Sep - 08 Sep Spirit Airlines direct
08 Sep - 15 Sep Spirit Airlines direct
08 Sep - 29 Sep Spirit Airlines direct
08 Sep - 12 Sep Spirit Airlines direct
01 Sep - 05 Sep Spirit Airlines direct
22 Sep - 10 Oct Spirit Airlines direct

Also check the deals for one-way flights from San Antonio to San Juan in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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